Asked by Veronica
With a known population mean of 100, and a known standard of error of the mean of 7.5, what is the probability of selecting at random a sample whose mean is equal to 110 or greater?
Answers
Answered by
PsyDAG
Z = (score-mean)/SEm
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of the Z score.
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of the Z score.
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